Common Sentences

The four sentences in Group A share a special feature. If you correctly identify that common feature, you will find that one of the sentences in Group B also has that same feature. What is the feature? What sentence in Group B can be added to Group A?

Group A:
Martians travel in space wearing green capes.
The Dutch girl made a sandwich of edam cheese.
The government keeps a file of every thing that you do in your life.
The hunter slept on a bed of rabbit pelts.

Group B:
A quart of condensed milk has a volume of one pint.
It takes a bun to make a hamburger.
The bear climbed a ladder to get in the tree.
The desert was a rainbow of colors.
The parrot bit the pirate on the nose.
The queen hornet sat on a throne of honey.